In Thomson CTV smps having a problem during start

? All TV's come with a button (on the TV) to turn the TV on.

ok you will need a 8 volt zenor diode and prob about 100 ohm resister to lower your current. if you can't build this then how about gettin a cigar ligher adapter for auto that has a voltage selector on it. and hard wire it up.

Fault with main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/
Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any.

this is not a capacitor problem. set is only 18 months old - has something to do with x y sustain boards not allowing smps to power on the high voltages.

A) Check the monitor cable on a KNOWN to be working computer,
Or.
Use the monitor cable from the working computer on yours.

Monitor cable does not remove?
Use the monitor, AND monitor cable; on a KNOWN to be working computer.

B) SMPS may have a weak voltage power rail

[There are 3;
A) 3.3 Volts
B) 5 Volts
C) 12 Volts
ALL are DC Voltage.
In comparison two D cell flashlight batteries produce 3 Volts DC ]

1) If ALL of the LED lights were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor (CPU) can use 51 to 125 Watts of power.
Just depends on what Processor it is.

This is why you may see LED's light, and maybe fans spin, but NOT enough power to turn the Processor on.

Use a multimeter set to DC Voltage, and check the 3 power rails.

ALL Orange wires you see are 3.3 Volts
ALL Red wires are 5 Volts
ALL Yellow wires are 12 Volts
ALL Black wires are Ground wires

OR,
Use a KNOWN to be good, Compatible power supply; for a temporary test unit.

Also, FOLLOW Anti-Static Procedures, with your unplugged from power computer.
DO NOT reach inside your computer if you are not.
Do not know what Anti-Static Procedures are?
Post back in a Comment.

PLUS, remove the Ram Memory modules ('Stick'), and reinstall them. One of them may be bumped loose.

NO. You cannot see it by eye alone. Remove, and reinstall.
This way you are ASSURED they/it, are installed tightly, and correctly.

For additional questions please post in a Comment.
Regards,
joecoolvette

The first thing to do is check that the charger is putting out the correct voltage, which should be ~19 volt. Then try to start it without the battery.If your voltage is OK and the battery out makes no difference, then I would suspect that you have a motherboard problem that must be fixed. If the computer starts up if you wiggle the DC plug where it goes into the computer, then it's the DC jack that is looks and must be re-soldered.

The dead laptop charger may be another cause. Try a new and correct one:

Intocircuit Gateway MD2614u AC Adapter 65Watt 19V 3.42A

Without a remote control, you can't change this option. Just buy one universal remote control, which have setup codes for Thomson Brand.

any one can give me the smps circuit diagram using P5NA80FI mosfet in thomson ctv ?

pls check remote aur repair smps power supply of tv

try replacing the filter capacitor of the PWM ic. 47uF-50v.